Jean Serre employs a young worker

Aged 15, Michel Papon (1846-1932) joins the firm to help Jean Serre searching for mineral springs and building petrification ladders. In 1867 he marries Madeleine, the only daughter of Jean Serre, and becomes his associate.
The corporate name of the firm is yet composed of their 2 names: “Maison Papon- Serre”